Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwAW4cLkV/SiTsKGzZYzZIwxq/13H6Bt7Kqg+nvviEWNFXG+Cg+iKpuelnfw… (844 chars)"
  }
}